subjoin

From sub- +‎ join.

• Rhymes: -ɔɪn

subjoin (third-person singular simple present subjoins, present participle subjoining, simple past and past participle subjoined)

1. To add something to the end; to append or annex.

   Synonym: underjoin

   • 1848, [William] Wilkie Collins, Memoirs of the Life of William Collins, Esq., R. A., volume I, London: Longman, […] , page 227:

     That he did not glory, however, in his mateless solitude […] is pleasantly testified in the letter that is now subjoined.

   • 1851–1861, Henry Mayhew, London Labour and the London Poor; […], volume (please specify |volume=I to IV), London: Griffin, Bohn, and Company, […], →OCLC:

     We subjoin an engraving […] which will give the reader a far better notion of the structure than any verbal description could convey to the mind.

• subjoinder

subjoin (plural subjoins)

1. (databases) A subordinate or secondary join.